Presentation
Pain in the medial aspect of the right femur after 3 weeks of slipping in the bathroom.
Patient Data
Age: 30 years
Gender: Female
From the case:
Crescent sign of femoral avascular necrosis
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Subchondral lucency seen at proximal right femoral head
Case Discussion
The crescent sign of AVN is seen on conventional radiographs and refers to a subchondral lucency seen most frequencly anterolateral aspect of the proximal femoral head.